<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>


    <script>
        function* fn() {
            yield 11111
            yield 22222
        }

        // let myFn = fn()
        //    console.log(myFn.next())
        //    console.log(myFn.next())
        //    console.log(myFn.next())

        // function run(fn) {
        //     let myFn = fn()
        //     if (myFn.next().done) {
        //         console.log('结束')
        //     } else {
        //         run(myFn.next())
        //     }
        // }

        // run(fn)
    </script>
</body>

</html>